Determinants of Agricultural Land Expansion: Evidence from Indian States

2013 ◽  
Author(s):  
Amarendra Pratap Singh ◽  
K. Narayanan
Keyword(s):  
Agricultural Land ◽  
Indian States ◽  
Agricultural Land Expansion

scholarly journals Agricultural Expansion-Induced Infiltration Rate Change in a West African Tropical Catchment

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Yacouba Yira ◽  
Aymar Y. Bossa
Keyword(s):  
Land Use ◽  
Bulk Density ◽  
Agricultural Land ◽  
Infiltration Rate ◽  
West African ◽  
Water Dynamics ◽  
Saturation State ◽  
Fertility Reduction ◽  
Significant Difference ◽  
Agricultural Land Expansion

Land use and land cover in the Dano catchment is characterized by a rapid conversion from seminatural vegetation (fallow) to agriculture (cropland). The study compares both the saturated (Ks) and the unsaturated (Kh) hydraulic conductivities under cropland and fallow in the catchment to gain insights into the effect of the current land use on soil water dynamics. Hydraulic conductivity was measured under forty-two (42) pairs of adjacent cropland-fallow plots using a Hood infiltrometer. Ks, Kh, bulk density, and soil texture were further compared using a paired two-tailed Student’s t-test (p=0.05). The results showed that both Ks and Kh are highly variable irrespective of the land use type (coefficient of variation > 100%). The results also showed that Ks was significantly higher (1.16-fold on average) under fallow compared to cropland. As for Kh, the results showed that, from −2 cm to zero tension heads (h), Kh under cropland and fallow is not significantly different; however, as the supplied tension decreases up to the saturation state, Kh under fallow becomes statistically higher compared to cropland. No significant difference was found between soil textures and bulk density under cropland and fallow meaning that the observed differences of Ks and Kh under cropland and fallow were caused by land use and not preexisting difference in texture. These results suggest an increasing risk of erosion, soil fertility reduction, and flood in the catchment because of agricultural land expansion.

Why do farmers expand their land into forests? Theories and evidence from Tanzania

1999 ◽  
Vol 4 (3) ◽  
pp. 313-331 ◽  
Author(s):  
ARILD ANGELSEN ◽  
ERIC F. KATEMANSIMBA SHITINDI ◽  
JOSTEIN AARRESTAD
Keyword(s):  
Agricultural Land ◽  
Jel Classification ◽  
Farm Households ◽  
Annual Crops ◽  
Classification Code ◽  
Cent Increase ◽  
Agricultural Land Expansion ◽  
Input Prices ◽  
Relative Profitability

This paper examines the causes of agricultural land expansion and deforestation in Tanzania. In the theoretical section, two different—and partly contradicting—sets of hypotheses are outlined. These are based on a subsistence approach, emphasising the food or income requirements of farm households, and a market approach, focussing on the relative profitability of agriculture. The statistical analysis shows that increased agricultural output prices, in particular for annual crops, is a major factor behind agricultural expansion. An increase of 1 per cent in output prices leads to about 1 per cent increase in agricultural area. Other factors such as input prices, technology and economic growth are tested and discussed, but the conclusions are less robust. The controversial role of population growth in explaining deforestation is addressed. Generally the results lend support to the market rather than the subsistence approach. JEL classification code: Q12, Q23, C23

scholarly journals Studi Populasi Mikrob Fungsional pada Tanah Gambut yang Diaplikasikan Dua Jenis Pestisida

2016 ◽  
Vol 2 (1) ◽  
pp. 7-12
Author(s):  
MAIPA DIA PATI ◽  
SYAIFUL ANWAR ◽  
RAHAYU WIDYASTUTI ◽  
DADANG .
Keyword(s):  
Adverse Effect ◽  
Soil Microbes ◽  
Agricultural Land ◽  
Peat Soil ◽  
Marginal Land ◽  
Pests And Diseases ◽  
Population Decrease ◽  
Agricultural Land Expansion ◽  
Phosphate Solubilizing ◽  
Chemical Pesticides

Agricultural land expansion necessity for food security in Indonesia has been faced by the fact in utilizing marginal land such as shallow peat soil in Central Kalimantan. Among problems encountered in such marginal land are pests and diseases incidence. Farmers practice in dealing with those problems is the chemical pesticides application. Unintended chemical pesticides that fall on/into the soil might have an adverse effect to soil microbes activity. This research aimed to assess the effect of pesticides on functional soil microbes population in peat soil. The research used completely randomized factorial design with two factors. First factor was 7 combinations of types (paraquat and buthylphenylmethyl carbamat (BPMC)) and dosages (50, 100, and 200% of recommended dosage) of pesticides. Second factor was 4 incubation times (1, 7, 14, and 28 days). Following the each of incubation times, the soil samples treated and analyzed for population of phosphate solubilizing microbes, cellulolytic microbes, and N2 fixing bacteria. The results show that phosphate solubilizing fungi population decrease by pesticides treatment. In contrast, pesticides significantly increased the Azospirillum population. Adverse effect to microbes population was found on the first day of incubation, however it recovered at 7 days and longer incubation times. In general, functional microbes population with paraquat application lower than BPMC application. 

AGRICULTURAL LAND EXPANSION AND DEFORESTATION IN MALAWI

2001 ◽  
Vol 11 (2) ◽  
pp. 167-182 ◽  
Author(s):  
I. J. MINDE ◽  
G. KOWERO ◽  
D. NGUGI ◽  
J. LUHANGA
Keyword(s):  
Agricultural Land ◽  
Agricultural Land Expansion

scholarly journals Pemanfaatan Data Sumberdaya Lahan untuk Pengembangan Komoditas Strategis di Indonesia

2020 ◽  
Vol 14 (2) ◽  
pp. 79
Author(s):  
Anny Mulyani ◽  
Erna Suryani ◽  
Husnain Husnain
Keyword(s):  
Agricultural Land ◽  
Animal Feed ◽  
Land Suitability ◽  
Land Resources ◽  
Land Distribution ◽  
Directorate General ◽  
Suitability Maps ◽  
Numerous Data ◽  
Private Entrepreneurs ◽  
Agricultural Land Expansion

<p><strong>Abstrak</strong>. Data sumberdaya lahan untuk 511 kabupaten/kota sudah tersedia mencakup peta tanah, peta kesesuaian lahan, dan peta arahan komoditas pertanian, dilengkapi dengan buku paket rekomendasi pengelolaan lahan. Komoditas yang sudah dievaluasi kesesuaian lahannya mencakup padi, jagung, kedelai, bawang merah, cabe merah, tebu, pakan ternak, kakao, dan kelapa sawit. Data sumberdaya lahan tersebut  menjadi bagian penting dalam pengembangan komoditas strategis di Indonesia, terbukti dengan banyaknya permintaan data baik dari Direktorat Jenderal Teknis lingkup Kementerian Pertanian, Kementerian/Lembaga terkait, pengusaha swasta, dan para investor dalam dan luar negeri, serta perguruan tinggi. Peta tematik yang banyak diminati adalah peta kesesuaian lahan dan peta sebaran lahan potensial untuk pengembangan berbagai komoditas strategis, baik untuk intensifikasi di lahan eksisting ataupun lahan ekstensifikasi, terutama di lahan semak belukar yang belum dimanfaatkan. Permasalahan utama adalah belum tersedianya peta penggunaan lahan terkini, sehingga kemungkinan penggunaan lahannya sudah berbeda dan yang diduga potensial untuk perluasan komoditas pertanian ternyata sudah dimanfaatkan. Oleh karena itu, perlu upaya penyediaan peta status penguasaan dan penggunaan lahan terbaru, agar para pengguna data yakin bahwa lahan potensial tersebut benar tersedia di lapangan.</p><p> </p><p><strong>Abstract</strong>. Land resources data for 511 regency/cities is available consisting of soil maps, land suitability maps, and recommended agricultural commodities maps, completed with a land management recommendation package book. Commodities that have been evaluated for land suitability including rice, corn, soybeans, shallots, red chillies, sugar cane, animal feed, cocoa, and palm oil. Land resources data is important in the development of strategic commodities in Indonesia. There has been numerous data requests from the Technical Directorate General of the Ministry of Agriculture, relevant Ministries/Institutions, private entrepreneurs and domestic and foreign investors, and universities.  The most on demand thematic maps are land suitability maps and maps of potential land distribution for developing various strategic commodities both for agricultural intensification and land expansion (extensification). Unfortunately, the up to date landuse map is barely available and the precise area that is potentaly available for agricultural land expansion is hardly defined. Therefore, providing the most recent land status and landuse maps is very important to convince map users that the precise potential area for agricultural land expansion could be axactly defined.</p>

Senna siamea (yellow cassia).

2021 ◽  
Author(s):  
Julissa Rojas-Sandoval ◽  
Pedro Acevedo-Rodríguez ◽  
Nick Pasiecznik
Keyword(s):  
Tamil Nadu ◽  
Agricultural Land ◽  
Santalum Album ◽  
Indian States ◽  
Senna Siamea ◽  
Shade Tree ◽  
Major Disadvantage ◽  
Dry Zone ◽  
Strong Winds ◽  
Timber Plantations

Abstract S. siamea is indigenous to southern India, Sri Lanka, Malaysia, Cambodia, Thailand and Myanmar, although it has been introduced widely into many states of India and also many countries in tropical Africa. As well as producing a good quality timber, often used for marquetry and inlay work due to its fine figure, the tree is used for erosion control planting, windbreaks, as a host for sandalwood (Santalum album), and as a nurse crop for Swietenia mahogani, to reduce borer attack. It is a common shade tree in Philippine towns and cities. It has been used to revegetate degraded agricultural land and is planted in taungya systems. It may be used as a shade tree for coffee (Heinsleigh and Holaway, 1988).It is one of the chief afforestation species in the dry zone of the Indian states of Andhra Pradesh, Tamil Nadu and Karnataka. The major disadvantage of the species is that it has a shallow root system, which make it susceptible to strong winds. Wood sawdust can cause irritation when in contact with the skin. Trials for timber plantations have been recommended (Gutteridge, 1997; Sosef et al., 1998), particularly as S. siamea could combine timber production with ornamental value. Research on genetic variation to determine the extent of adaptation of various provenances would also be of value.

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